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drivers: qcom: rpmh-rsc: log RPMH requests in FTRACE 

Log sent RPMH requests and interrupt responses in FTRACE.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
[rplsssn@codeaurora.org: rebase to v4.18-rc1 & fix merge conflict]
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Lina Iyer 2018-06-20 18:57:00 +05:30 committed by Andy Gross
parent 2e4690a09f
commit fc087fe5a4
3 changed files with 93 additions and 1 deletions
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1
drivers/soc/qcom/Makefile
View File

@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
CFLAGS_rpmh-rsc.o := -I$(src)
obj-$(CONFIG_QCOM_GENI_SE) += qcom-geni-se.o
obj-$(CONFIG_QCOM_COMMAND_DB) += cmd-db.o
obj-$(CONFIG_QCOM_GLINK_SSR) += glink_ssr.o

11
drivers/soc/qcom/rpmh-rsc.c
View File

@ -23,6 +23,9 @@
#include "rpmh-internal.h"
#define CREATE_TRACE_POINTS
#include "trace-rpmh.h"
#define RSC_DRV_TCS_OFFSET 672
#define RSC_DRV_CMD_OFFSET 20
@ -135,7 +138,7 @@ static const struct tcs_request *get_req_from_tcs(struct rsc_drv *drv,
static irqreturn_t tcs_tx_done(int irq, void *p)
{
struct rsc_drv *drv = p;
int i, j;
int i, j, err;
unsigned long irq_status;
const struct tcs_request *req;
struct tcs_cmd *cmd;
@ -149,6 +152,7 @@ static irqreturn_t tcs_tx_done(int irq, void *p)
goto skip;
}
err = 0;
for (j = 0; j < req->num_cmds; j++) {
u32 sts;
@ -159,8 +163,11 @@ static irqreturn_t tcs_tx_done(int irq, void *p)
!(sts & CMD_STATUS_COMPL))) {
pr_err("Incomplete request: %s: addr=%#x data=%#x",
drv->name, cmd->addr, cmd->data);
err = -EIO;
}
}
trace_rpmh_tx_done(drv, i, req, err);
skip:
/* Reclaim the TCS */
write_tcs_reg(drv, RSC_DRV_CMD_ENABLE, i, 0);
@ -194,9 +201,11 @@ static void __tcs_buffer_write(struct rsc_drv *drv, int tcs_id, int cmd_id,
cmd_complete |= cmd->wait << j;
msgid = cmd_msgid;
msgid |= cmd->wait ? CMD_MSGID_RESP_REQ : 0;
write_tcs_cmd(drv, RSC_DRV_CMD_MSGID, tcs_id, j, msgid);
write_tcs_cmd(drv, RSC_DRV_CMD_ADDR, tcs_id, j, cmd->addr);
write_tcs_cmd(drv, RSC_DRV_CMD_DATA, tcs_id, j, cmd->data);
trace_rpmh_send_msg(drv, tcs_id, j, msgid, cmd);
}
write_tcs_reg(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, tcs_id, cmd_complete);

82
drivers/soc/qcom/trace-rpmh.h Normal file
View File

@ -0,0 +1,82 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
*/
#if !defined(_TRACE_RPMH_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_RPMH_H
#undef TRACE_SYSTEM
#define TRACE_SYSTEM rpmh
#include <linux/tracepoint.h>
#include "rpmh-internal.h"
TRACE_EVENT(rpmh_tx_done,
TP_PROTO(struct rsc_drv *d, int m, const struct tcs_request *r, int e),
TP_ARGS(d, m, r, e),
TP_STRUCT__entry(
__string(name, d->name)
__field(int, m)
__field(u32, addr)
__field(u32, data)
__field(int, err)
),
TP_fast_assign(
__assign_str(name, d->name);
__entry->m = m;
__entry->addr = r->cmds[0].addr;
__entry->data = r->cmds[0].data;
__entry->err = e;
),
TP_printk("%s: ack: tcs-m: %d addr: %#x data: %#x errno: %d",
__get_str(name), __entry->m, __entry->addr, __entry->data,
__entry->err)
);
TRACE_EVENT(rpmh_send_msg,
TP_PROTO(struct rsc_drv *d, int m, int n, u32 h,
const struct tcs_cmd *c),
TP_ARGS(d, m, n, h, c),
TP_STRUCT__entry(
__string(name, d->name)
__field(int, m)
__field(int, n)
__field(u32, hdr)
__field(u32, addr)
__field(u32, data)
__field(bool, wait)
),
TP_fast_assign(
__assign_str(name, d->name);
__entry->m = m;
__entry->n = n;
__entry->hdr = h;
__entry->addr = c->addr;
__entry->data = c->data;
__entry->wait = c->wait;
),
TP_printk("%s: send-msg: tcs(m): %d cmd(n): %d msgid: %#x addr: %#x data: %#x complete: %d",
__get_str(name), __entry->m, __entry->n, __entry->hdr,
__entry->addr, __entry->data, __entry->wait)
);
#endif /* _TRACE_RPMH_H */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace-rpmh
#include <trace/define_trace.h>